Internal-combustion engine.



D.. T T 0 C S E DD. P C. Tl.. M Aw E INTERNAL COMBUSTION ENGINE.

APPLICATION FILED APB.29.1907.

a Bumm-smi?! 1.

f! TTORNEYS No. 887,345. PATENTED MAY l2, 1908. H. A. & J. C. PRESCOIT.

INTERNAL GOMBUSTION ENGINE.

APPLICATION FILED APB..29. 1907.

3 SHEETS-SHEET 2.

` A TTORNE Y;

- No. 887,345. 4 EATENTED MAY 12, 1908.

- E. A. N J. C. EEESGOTT.

INTERNAL GOMBNSTIGN ENGINE.

APPLICATION FILED APE. 29A 1907.

3 SHEETS-SHEET 3t N 55 i "m .E r\ N MW A TTORNE V5 UNiirno HENRY A. FRESCOTT AND JAMES C. PRESCOTT, OF GERiANTOWN, PENNSYLVANIA, ASSIGNORS OF ONE-TENTH TO RAHSDEN SliiIRlIIWAITl), 0l GERMANTCWN, Plllllil SYLVANIA.

Speeiesgtion ol Letters Eetent.

Application filed. April 29, 1907. Serial No. S'ltff.

To all whom 'izf muy concern:

Be it known that We, Heuer A. Piiiiscorr and JAMES C. Piiissoor'r, citizens of the United States, residing itt Germantown, in the county of Philadelphie and State of Pennsylvanie, have invented ii new und useful Internal-Combestion Engine, ot' which the following?r is n. specification.

This invention relates to internzil eoinhustion engines, und hns for its principal ohjeet to provide sin engine in which both the oxlosive and expansive l'oioes of the gases nre 'hilly utilized.

A further object of the invention is to rovide iin internal combustion engine iii w iicli one or more ordinari` eus engines zii-c iupled to o crank shaft while. the exhaust li'fu'ii suoli engines is employed. lor the purpose of operiiting iin iinpiict iiiotor or turbine engine which is geared to the suine crunk shiilt, the gearing heine' so proportioned that the turbine wheel is iillowed to run :it the high speed considered essential lo hriiii 'the i'iill ell'iciency ol the engine into ploy.

A still further ohject ol the, invention to provide :i device oi' this cliiss in whicii ii roceiver is employed between the c x'lindors ol the priiiiiii'y en ine or engines und the lurbine to receive the intermittent exhaust, und to discharge through the turbine ii continuous stream of ges under unilioiiii, or ipproxinintely uniform pressure.

lVith these und other objects iii View, :is will more l'ully horeiiiiifter uppeiir, the invention consists in certi-iin novel tentures ol' construction and iirriiugeinont oi pui-ts, hereinafter fully.deserilied, illustriitei in the ziceoiiipiinyuiei drawings, und piiitiouhii'ly pointed out iii the iippended cliiiins, it being understood that various changes in the torni, proportions, size rind iunior dote-ils oi the i structure iiiiiy he inode without departing;

l'roin the spirit or siicriliciiig :my ol the iidvinitnges ol' the invention.

1n llic iicconipziuyini,r drawings:--l"iiure 1 is ii l'ront eleviitioii ol' un internal coiiihustion engine constructed und srriinged in iiooordiiiioc with the invention, one ot' the cheek vulves being shown in section. Fig. 2 is :i side elevation of the sinne, partly in seotioii. Fig. '3 is ii sectional Blain View' of the yexhaust receiver und equalizer on the line ployed to iiidicii'te corresponding ports AMB oi' ilig'. l.

Siinihir nunicrnls ol reloreiiee uro eni- 17 i'or the support of ii shiilt 15% ou which is mounted i?. turbine wheel oi' disk 19, the hitter being inelosed. within ii suitable casing 2O whieh is secured. to the Cylinders ll. :in inlet port 2l und ii suitable discharge port 222. it is well understood that the eil'ieie -oy oll tui'liine engines is not developed unie engines nre zillowed to run :fat very speed, und to peruiit th" und in the linie triinsinit the euere' lo the niiiriii hi'iieliets eiirry beiiiines sinne treuil; sliiillt 1l), the turbine siiiii't is provided with e, very siiiiili pinion 23 which iiiteriiieshes with u liirge geni' 24 secured to the riiinl mit i0. ln connecting these two sliiii'is, .iioolies geeriug is used, the teeth heilig 'inclined epproxiiiiiitely :it :in :ingle of forty-live degrees sind g the teeth :it the center ol the inves of the `ireurs iire slightly speced troni each other for convenience in manufacture. servo to keep the turbine wheel from welobling und insure smooth, even running, all hueli-hish being,` prevented.

In order to seeure iiiiiioriii operation oi' the turbine, iin equalizer 3l) is arranged between the cylinders l1 und the inlet port 21 of the turbine. This equalizer comprises :i eylin der 3l in which is iirriinged n. piston 32 thiitis euri-lcd by u rod 323 extending through one of the cylinder lieiids und provided it its outer end with ii` spider 251i. 'll urzns oi' the spider ure connected to the huso 2:25 oi" the eyiiiiiier oy ineens of si iluriility of ions-ion springs 86, so that the piston is constantlyr inged towind the end of the cylinder. The exhaust pipes 15 which lead into the cylinder 3l are provided with check valves 38 that open in the direction of the e flinder, sind :is the er liiiust giises iiie i'orceil from the cylinders l1 'they will piiss through these iiider is pliired ii. hriiehet lil, und the two 'ihe turbine. cnsing hns 

